Add an is<PropertyName>Immutable to know if a property is immutable

Summary:
Add a utility function is<Parameter>Immutable to access immutability quickly.
Generated classes uses them internally to avoid code redundance.

Sample:
```
    /**
      Set blocked-by-default
    */
    void setBlockedByDefault( bool v )
    {
      if (v != mBlockedByDefault && !isBlockedByDefaultImmutable() )  {
        mBlockedByDefault = v;
        Q_EMIT blockedByDefaultChanged();
      }
    }

    /**
      Is blocked-by-default Immutable
    */
    bool isBlockedByDefaultImmutable()
    {
      return isImmutable( QStringLiteral( "blockedByDefault" ) );
    }
```

```
    /**
      Set org.kde.ActivityManager.ResourceScoringEnabled
    */
    void setResourceScoringEnabled( bool v )
    {
      if (!isResourceScoringEnabledImmutable() )
        mResourceScoringEnabled = v;
    }

    /**
      Is org.kde.ActivityManager.ResourceScoringEnabled Immutable
    */
    bool isResourceScoringEnabledImmutable()
    {
      return isImmutable( QStringLiteral( "resourceScoringEnabled" ) );
    }
```

Reviewers: ervin, #frameworks, dfaure

Reviewed By: ervin

Subscribers: dfaure, tcanabrava, kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D26368

1 files changed, 12 insertions, 0 deletions

diff --git a/src/kconfig_compiler/kconfig_compiler.cpp b/src/kconfig_compiler/kconfig_compiler.cpp
index 11becf5c..989e2609 100644
--- a/src/kconfig_compiler/kconfig_compiler.cpp
+++ b/src/kconfig_compiler/kconfig_compiler.cpp
@@ -154,6 +154,18 @@ QString getFunction(const QString &n, const QString &className)
     return result;
 }
 
+QString immutableFunction(const QString &n, const QString &className)
+{
+    QString result = QLatin1String("is") + n;
+    result[2] = result[2].toUpper();
+    result += "Immutable";
+
+    if (!className.isEmpty()) {
+        result = className + QLatin1String("::") + result;
+    }
+    return result;
+}
+
 void addQuotes(QString &s)
 {
     if (!s.startsWith(QLatin1Char('"'))) {